Sam Kiley

Foreign Affairs Editor

The people of Port Said believe they saw off the British in the 1950s and the Israelis in the 1960s.

Now they're rolling up their sleeves to take on Egypt’s president, Mohammed Morsi, promising a second round of bloodletting in as many weeks.

A beach resort city that guards the Mediterranean entrance to the Suez Canal, Port Said, was torn by violence last weekend.

Thirty people and two policemen were killed in running street battles.

Image Caption:A protester kicks a live tear gas canister into a fire earleir this week

Locals deny that any of them shot at the police. But there are bullet holes in the walls of the partly burned officers club on the sea front that say otherwise.

Still, there is no hiding the violence that the city met when protestors attacked the prison.

Dozens of market stalls and tiny homes were razed during the fighting – local businesses were riddled with bullets.

The prison was attacked because it housed 21 men condemned to death for their parts in the killing of 74 football fans during a riot on February 1 last year.

Some 59 others, among them nine police, are still waiting for their verdicts in the jail.

The killings last week have fuelled what was already going to be an incendiary brew on the day marking the first anniversary of the riot in which supporters of the Cairo team Al Ahly were beaten and crushed to death.

Ansaf Mousa’s son Osama el Sherbiri, 23, an IT graduate was killed last week during the demonstrations.

"Morsi has blood on his hands. Osama el Sherbini exploded the whole world. His death will fuel an explosion.

"There will be a protest against Morsi like none before. This will be the nuclear explosion that blows up the whole place."

Her anger is shared by families across the city.

The bullet that killed Osama wounded his friend Mohammed.

"The youth will be on the streets (on February 1), they have to be to take revenge for Osama and all the others. This isn’t going to end here."

A state of emergency was declared in Port Suez, Ismailia and Port Said last week. Curfews imposed for most of the night hours have since been cut back to a token regulation of the small hours of the morning as they were entirely ignored anyway.

General Abdel Fatteh al Sisi, the commander of the Egyptian armed forces, has warned that he fears the nation may fall apart .

He singled out the Suez City as especially troubling – promising to ensure the security of the canal as his top priority.

The region, though prosperous and benefiting from tax free zones and $5.2bn (£3.3bn) in revenues to Egypt for transit fees for shipping, is not associated with the secular middle class that had driven so much of the revolution in Cairo.

Osama's family are deeply religious. Many of the men have callused foreheads from years of prayer.

Yet they object to the Muslim Brotherhood’s domination of Egypt’s constitutional process and presidency.

"The Muslim Brotherhood are not Muslims – they are just after power," said Osama's mother.

That, in Port Said, seems to be the dominant view.

In a downtown coffee house clattering with domino players El Badry Farghali, a veteran MP who has opposed the military governments which were swept away two years ago and the new Muslim Brotherhood regime ever since, held court to a new generation of young protestors.

"The Muslim Brotherhood will not give up power. They will only manoeuvre. They are backward. They do not have the capacity to run the country on their own. And they will not make concessions. But the Egyptian people will force them to back down," he said.

Port Said has chosen the anniversary of the football chaos to drive home a political message. The odds are that it will be written in blood.